20828264

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{5281}}^1$

素因数の和:5333

約数の個数: 32

約数和(自身を含む): 42784200

約数和(自身を除く): 21955936

約数列:

[1, 2, 4, 8, 17, 29, 34, 58, 68, 116, 136, 232, 493, 986, 1972, 3944, 5281, 10562, 21124, 42248, 89777, 153149, 179554, 306298, 359108, 612596, 718216, 1225192, 2603533, 5207066, 10414132, 20828264]

約数ペア:

[(1, 20828264), (2, 10414132), (4, 5207066), (8, 2603533), (17, 1225192), (29, 718216), (34, 612596), (58, 359108), (68, 306298), (116, 179554), (136, 153149), (232, 89777), (493, 42248), (986, 21124), (1972, 10562), (3944, 5281)]